Dump truck



BEST AVAILABLE-COPY March 30 1926.

J. R. BOLDT ET AL- DUMP Tnucx Filed Nov. 19 Y 1924 Patentecllvlar. 30, 1926.

UNITED STAT E T NT onN 3.30pm, saiyrunnn. Ransom; AND ALFRED w. MELLoNQor BLAIRSvInIIEQ, Y 1 PENNSYLVANIA. r

npMr TRUCK.

Application filed november e, 1924. Seria1;ITo. 7 5 0,821.

To all whomwit may concern: i

Be it known that we, JOHN B; Boner, Saar- UEL A. Hanson, and ALFRED 1V. MELLON, citizens of the United States, residing at Blairsville, in the county of Indiana and State of Pennsylvania,have invented certain new and useful Improvements in Dump Trucks, of which the following is a specifi-' cation. V

This invention relates to improvements'in dumptrucks, and has for its principal object whereby the latter will be moved to a dumpmay be discharged therefrom.

is to provide adumping apparatus of the above mentioned character wherein the mothe same:

tive power employed for operating the truck. is also'adapted to be employed for actuating Y carriedby' the forward end ofthe screw .65,

the raising and lowering of the body.

A further object 'of the invention is to provide a dump truck of the above mentioned character, wherein means is provided for facilitating the operation of' the dumping operation by the driver of the truck, thus ob- 'viating any necessity of the driver having to leave his seat, in order to raise or. lower the body. I

A further object of the invention is to provide a dump truck of the above mentioned character, which is simple in construction, inexpensive, strong and durable, and further well adapted for the purposes for which it is designated. v

Other objects and advantages of this invention will become apparent during the following description.

In the accompanymg drawing, forming a part of this speclfication, and in which like numerals designate like parts throughout side elevation of atruck Figure 1 is a modified in accordance withthe present 1nvention, and showing the improved hoisting a and dumping means associated therewith.

Fig. 2 is a fragmentary top plan viewiof the hoisting means, perse.

In Figures 1 and 2, of the drawings, the improved dumping apparatus is specifically illustrated. A pair of longitudinally extending tracks and 56 respectively, are secured in spaced relation on the bottomjo'f the body 4, in the manner as clearly illusto provide an apparatus for raising the forward end of the body of the truck,

ends of the traol .-..1A stop-59 is further-as! I so'ciated withthe lower ends ofIeach'Qf'the P tracks, and the purpose thereof willthere'in after be more fully described. Extending transversely across the sidesof the chassis,are the cross bars 60 and 61V 1e;

spectivelyfl r A longitudinally extending bar 62 are ranged centrally between the cross bars 60 and'61, and provides a guide for the block '63,

which is provided with an extension 64, the

latter being threadedon the screw 65, which extends longitudinally of the chassis, and is journaled at its ends :in the cross bars. I v;

Theblock 63 is'jadapted forslidable movement on-the bar 62, by' means of the gear:66,

and which meshes with a similar gear 67,

I through the medium of the gearing shown with'the-mot'or 3. The clutch is controlled by the pedal 2. The parts '2' and 28'are conveniently operated by 5 the driver :whosits in the compartment 6.

Ajrod 68 is carried by the block 63, and extends transversely across the same: A pair of. rollers 6 9 and 70 respectively are supported on the outer ends of the rod and are adapted forcooperationwiththe tracks trated inFi'gure 2.

In operation, the jacent the cross bar 60, and the Wheels on the I rod 68 are disposed adjacent the forward ends ofthe track s! When the screw 65 is rotated in one direction, the block 63 will travel rearwardly ion the guide 62, causing a rearward movement ofthe rod 68 and simultaneously' causing the rollers to travelrear-v wardly on the tracks. As the rollers reach the cam portionsof the tracks, the same will force the body 4 upwardly int-o the'posit-ion" shown inthef dotted lines in Figurejhwhere; bythe contents of the body 4 may be easily block 63 isnormally act, I

i 55 and 56, in *the manner as clearly illusdumped.

' ward movement of the rollers 69' and 70 and prevent the displacement of the same from the tracks. By reversing the rotation of the screw 65, the block 63 is returned to its normal position, simultaneously causing the rollers to move forwardly on the track,

actuation of the dumping apparatus.- A

dumping" truck of the above mentioned character will, at all times, bepositive and efficient in carryingout the purposes for which the same is do: 'gnated, and furthermore considerable time and labor will be saved in operatin the mechanism.

lVhile We hzwe shown the preferred embodiment of our invention, it is to be understood that various changes in the size, shape, and arrangement or" parts may be resorted to i 'ithout departing from the spirit of the invention, and the scope of the appencec claim.

Thestops 59 will limit therear- Having thus described our invention, What we claim is: v V V i V A dumping apparatus for motor vehicles comprising in combination with the chassis position,, said means comprising a pair of longitudinally extending tracks secured in spaced relation on the bottom of the body, am portions formed on the rear ends of the tracks and extending downwardly from the bottom of the body, a pair of spaced cross lars extending between the sides 01" the chassis, arotatable screw extending be tween the cross bars and having its ends journaled therein, a block adapted for longi tudinal movement on said screw, a transverse rod carried by said block, and rollers on the outer ends ofsaid rod adapted for engagement with said tracks, said body adapted to be swung upwardly to a tilting position, when the rollers are in engagementwith the camportions of the tracks.

In testimony whereof we aflix our signacures.

JOHN R. BOLDT. SAMUEL A. RANSON; ALFRED. W. MEL-LON, 

